Kawasaki+Beckhoff/Wago

Check out the fieldbus manual found here for setup information:

General Fieldbus Manual for D/E Controller

Then provide details of setup if you need anything further:
Controller type
Adapter or Scanner
Have you the EDS file (post it)
You say you are beginner.....what does that mean, new to Robots, new to Kawasaki, new to Device Net.........

When the General Fieldbus option is enabled, it globally enables all compatible fieldbuses to be used.
The attached is a list of bus module compatibility for C,D and E Controllers, dated back to 2015 from Kawasaki Germany.
- Better to contact Kawasaki Distributor for a more up to date list.